.middle {
    display: flex;
    justify-content: center;
}

.middle > div {
    width: 900px;
    margin: 30px 0;
    /*padding: 30px;*/
    border: 1px solid gray;
}

/*-----------------------公司描述-------------------------*/
.describe {
    font-family: 新宋体;

}

.describe > div {
    text-indent: 3em;
    /*margin: 10px 0;*/
    /*padding: 10px 0;*/
    line-height: 30px;
    margin: 0 0 30px 0;
}

/*-------------------------产品轮播------------*/
.product {
    overflow: hidden;
}

.product > div {
    display: flex;
    overflow: hidden;
    animation: move 5s linear infinite;
}

@keyframes move {
    0% {
        margin-left: 0;
    }
    20% {
        margin-left: 200px;
    }
    40% {
        margin-left: 400px;
    }
    60% {
        margin-left: 200px;
    }
    80% {
        margin-left: 0;
    }
    100% {
        margin-left: -200px;
    }
}

.product > div > div > img {
    width: 150px;
    height: 150px;
    margin-right: 20px;
}